Joint Structure for an Air Nozzle

ABSTRACT

A joint structure for an air nozzle contains a valve joint being connected on an air nozzle so as to fill air, and the air nozzle including outer threads defined around an outer peripheral side thereof. The valve joint includes: a body having a hole defined therein, an inlet communicating with the hole, and at least one orifice penetrating from an exterior environment to the hole; at least one limiting member secured and moving in the at least one orifice and having meshing teeth formed on one end thereof to correspond to the hole, the meshing teeth engaging with the outer threads of the air nozzle, and the limiting member having a defining segment arranged on another end thereof; and a controlling assembly fitted on the body and used to control the at least one limiting member to move in the at least one orifice.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a joint structure for an air nozzle, and more particularly to a joint structure for connecting a valve joint with an air nozzle so as to fill air stably.

2. Description of the Prior Art

A conventional air filling method contains a rotary engagement, wherein a valve joint is engaged with an air nozzle quickly by ways of a compressed rubber, yet such an engagement cannot fill air at a high pressure stably. Another air filling method is a thread rotation, wherein the valve joint is screwed with the air nozzle by screwing male threads with female threads so as to fill air at a high pressure, but such a thread rotation is slow and is operated manually.

The present invention has arisen to mitigate and/or obviate the afore-described disadvantages.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a joint structure for an air nozzle which when a controlling assembly of the valve joint does not limit at least one limiting member, a user allows inserting an air nozzle into the hole a of the valve joint by one hand, and the controlling assembly rotates with an insertion force so as to shift the controlling assembly to limit the at least one limiting member or after inserting the air nozzle, the controlling assembly rotates directly and shifts so as to limit the at least one limiting member, thus operating the valve joint easily and smoothly.

Another object of the present invention is to provide a joint structure for an air nozzle which as connecting the valve joint with the air nozzle, outer threads of the air nozzle engage with meshing teeth of the at least one limiting member so as to limit or not limit the at least one limiting member by shifting the controlling assembly, and the meshing teeth engage with the outer threads of the air nozzle so as to limit the air nozzle in the hole, such that the valve joint is connected with the air nozzle quickly, has small size, is assembled securely, and is suitable for a high-pressure air fill.

A joint structure for an air nozzle in accordance with a preferred embodiment of the present invention contains a valve joint being connected on an air nozzle so as to fill air, and the air nozzle including outer threads defined around an outer peripheral side thereof, the valve joint including:

a body having a hole defined therein, an inlet communicating with the hole, and at least one orifice penetrating from an exterior environment to the hole;

at least one limiting member secured and moving in the at least one orifice and having meshing teeth formed on one end thereof to correspond to the hole, the meshing teeth engaging with the outer threads of the air nozzle, and the limiting member having a defining segment arranged on another end thereof; and

a controlling assembly fitted on the body and used to control the at least one limiting member to move in the at least one orifice.

A joint structure for an air nozzle in accordance with another preferred embodiment of the present invention contains a valve joint being connected on an air nozzle so as to fill air, and the air nozzle including outer threads defined around an outer peripheral side thereof, the valve joint being a Presta valve join and including:

a body having a hole defined therein, an inlet communicating with the hole, and at least one orifice penetrating from an exterior environment to the hole, the body further having a second seal ring disposed on one end of an outer peripheral side thereof and a third seal ring mounted on another end of the outer peripheral side thereof, the second seal ring and the third seal ring being provided to close a front side and a rear side of the at least one orifice;

at least one limiting member secured and moving in the at least one orifice; and

a controlling assembly fitted on the body and used to control the at least one limiting member to move in the at least one orifice or to limit a movement of the at least one limiting member.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing the exploded components of a joint structure for an air nozzle according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing the assembly of the joint structure for the air nozzle according to the first embodiment of the present invention.

FIG. 3 is a cross sectional view showing the assembly of the joint structure for the air nozzle according to the first embodiment of the present invention.

FIG. 4 is a cross section view showing an air nozzle not connecting with a valve joint according to the first embodiment of the present invention.

FIG. 5 is a cross section view showing the air nozzle connecting with the valve joint according to the first embodiment of the present invention.

FIG. 6 is a cross section view showing the operation of a controlling assembly of the joint structure for the air nozzle according to the first embodiment of the present invention.

FIG. 7 is a cross section view showing an air nozzle not connecting with a valve joint according to a second embodiment of the present invention.

FIG. 8 is another cross section view showing the air nozzle not connecting with the valve joint according to the second embodiment of the present invention.

FIG. 9 is a cross section view showing the air nozzle connecting with the valve joint according to the second embodiment of the present invention.

FIG. 10 is another cross section view showing the air nozzle connecting with the valve joint according to the second embodiment of the present invention.

FIG. 11 is a cross section view showing an air nozzle not connecting with a valve joint according to a third embodiment of the present invention.

FIG. 12 is a cross section view showing the air nozzle connecting with the valve joint according to the third embodiment of the present invention.

FIG. 13 is a cross section view showing an air nozzle not connecting with a valve joint according to a fourth embodiment of the present invention.

FIG. 14 is a cross section view showing the air nozzle connecting with the valve joint according to the fourth embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention will be clearer from the following description when viewed together with the accompanying drawings, which show, for purpose of illustrations only, the preferred embodiment in accordance with the present invention.

Referring to FIGS. 1-4, a joint structure for an air nozzle according to a first embodiment of the present invention comprises a valve joint 1 connected on an air nozzle 2 so as to fill air, and the air nozzle 2 includes outer threads 3 defined around an outer peripheral side thereof, the valve joint 1 is a Presta valve joint and comprises:

a body 10 having a hole 11 defined therein, an inlet 12 communicating with the hole 11, and at least one orifice 13 penetrating from an exterior environment to the hole 11, the at least one orifice 13 is non-circular, and the body 10 also having a middle cylinder 10A, a front cylinder 10B, and a rear cylinder 10C, wherein the front cylinder 10B is screwed with one end of the middle cylinder 10A and is used to fix a first seal ring 14, the rear cylinder 10C is screwed with another end of the middle cylinder 10A and is applied to fix a compression spring 15, the body 10 further has a second seal ring 16 disposed on one end of an outer peripheral side and on the middle cylinder 10A thereof and a third seal ring 17 mounted on another end of the outer peripheral side thereof and the rear cylinder 10C, the second seal ring 16 and the third seal ring 17 are provided to close a front side and a rear side of the at least one orifice 13, and the first seal ring 14 is served to close the air nozzle 2, the compression spring 15 is used for pushing the air nozzle 2;

at least one limiting member 20 secured and moving in the at least one orifice 13 and having meshing teeth 21 formed on one end thereof to correspond to the hole 11, the meshing teeth 21 engaging with the outer threads 3 of the air nozzle 2, and the limiting member 20 having a defining segment 22 arranged on another end thereof;

a controlling assembly 30 formed in a hollow cylinder shape and fitted on the body 10, the controlling assembly 30 being used to control the at least one limiting member 20 to move in the at least one orifice 13 and having a push protrusion 31 defined therein, wherein the controlling assembly 30 moves so that the push protrusion 31 pushes and limits the defining segment 22 of the at least one limiting member 20, such that the at least one limiting member 20 is controlled by the controlling assembly 30 to move;

a spring 40 defined between the body 10 and the at least one limiting member 20 and used to push the at least one limiting member 20 to move outwardly.

With reference to FIGS. 4 and 5, the hole 11 of the body 10 is applied to insert the air nozzle 2, the controlling assembly 30 is shifted to limit or unlimit the defining segment 22 of the at least one limiting member 20, when the defining segment 22 of the at least one limiting member 20 is not limited, the at least one limiting member 20 moves outwardly so that the meshing teeth 21 does not engage with the outer threads 3 of the air nozzle 2, and then the air nozzle 2 inserts into or disengages from the hole 11, thereby the hole 11 is provided to insert the air nozzle 2 in the hole 11 or disengage the air nozzle 2 from the hole 11. When the defining segment 22 of the at least one limiting member 20 is limited and does not move, the at least one limiting member 20 moves inwardly, and the meshing teeth 21 move into the hole 11 so that the meshing teeth 21 engage with the outer threads 3 of the air nozzle 2, such that the outer threads 3 of the air nozzle 2 is limited by the at least one limiting member 20, thus limiting the air nozzle 2 in the hole 11.

The controlling assembly 30 allows controlling or limiting a movement of the at least one limiting member 20 in a sliding manner or in a rotating manner. As shown in FIGS. 1-6, the controlling assembly 30 controls or limits the movement of the at least one limiting member 20 in the sliding manner, wherein the push protrusion 31 is defined around the controlling assembly 30 and has at least one cutout 311 defined therein, and the body 10 has at least one engaging rim 18 retaining with the at least one cutout 311 so that the controlling assembly 30 is moved forwardly, and the at least one engaging rim 18 controls or limits the movement of the at least one limiting member 20, after the at least one engaging rim 18 moves through the at least one cutout 311, it rotates a certain angle to limit the controlling assembly 30 to move.

As illustrated in FIGS. 7-10, a joint structure for an air nozzle according to a second embodiment of the present invention comprises a controlling assembly 30A controlling or limiting a movement of at least one limiting member 20A in a rotating manner, wherein a push protrusion 31A of the controlling assembly 30A is located on a circumference line of the at least one limiting member 20A and does not contact the at least one limiting member 20A, so when the controlling assembly 30A rotates, the push protrusion 31A rotates toward an outer side of the at least one limiting member 20A and presses the at least one limiting member 20A so that the push protrusion 31A controls or limits the movement of at least one limiting member 20A.

With reference to FIGS. 11 and 12, a valve joint 4 according to a third embodiment of the present invention is connected on an air nozzle 5 to fill air, and the air nozzle 5 includes outer threads 6 defined around an outer peripheral side thereof, the valve joint 4 is a Schrader valve joint and comprises:

a body 50 having a hole 51 defined therein, an inlet 52 communicating with the hole 51, and the hole 51 having a seal plug 54 defined therein to match with the valve joint 4;

at least one limiting member 60 secured and moving in at least one orifice 53 and having meshing teeth 61 formed on one end thereof to correspond to the hole 51, the meshing teeth 61 engaging with the outer threads 6 of the air nozzle 5, and the limiting member 60 having a defining segment 62 arranged on another end thereof, the at least one limiting member 60 having an extension 63 extending outwardly from one end thereof and axially connected with the body 50;

a controlling assembly 70 formed in a hollow cylinder shape and fitted on the body 50, the controlling assembly 70 being used to control the at least one limiting member 60 to move in the at least one orifice 53 and having a push protrusion 71 defined therein, wherein the controlling assembly 70 moves so that the push protrusion 71 pushes and limits the defining segment 62 of the at least one limiting member 60, such that the at least one limiting member 60 is controlled by the controlling assembly 70 to move as shown in FIG. 12;

a spring 80 defined between the body 50 and the extension 63 of the at least one limiting member 60 and used to push the at least one limiting member 60 to move outwardly.

Referring further to FIGS. 13 and 14, a difference of a valve joint 4 of a fourth embodiment of the present invention from that of the second embodiment comprises at least one limiting member 60A having an extension 63A extending outwardly from one end of the at least one limiting member 60A and integrally formed with a body 50A, and the extension 63A has flexibility to replace the spring 80 of the second embodiment, so the spring 80 of the second embodiment is not necessary in this fourth embodiment.

Thereby, the valve joint of the present invention has the following advantages:

1. When the controlling assembly 30 of the valve joint 1 does not limit the at least one limiting member 20, a user allows inserting the air nozzle 2 into the hole 11 of the valve joint 1 by one hand, and the controlling assembly 30 rotates with an insertion force so as to shift the controlling assembly 30 to limit the at least one limiting member 20 or after inserting the air nozzle 2, the controlling assembly 30 rotates directly and shifts so as to limit the at least one limiting member 20, thus operating the valve joint 1 easily and smoothly.

2. As connecting the valve joint 1 with the air nozzle 2, the outer threads 3 of the air nozzle 2 engage with the meshing teeth 21 of the at least one limiting member 20 so as to limit or not limit the at least one limiting member 20 by shifting the controlling assembly 30, and the meshing teeth 21 engage with the outer threads 3 of the air nozzle 2, thus limiting the air nozzle 2 in the hole 11. Thereby, the valve joint 1 is connected with the air nozzle 2 quickly, has small size, is assembled securely, and is suitable for a high-pressure air fill.

While we have shown and described various embodiments in accordance with the present invention, it is clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention. 

What is claimed is:
 1. A joint structure for an air nozzle comprising a valve joint being connected on an air nozzle so as to fill air, and the air nozzle including outer threads defined around an outer peripheral side thereof, the valve joint including: a body having a hole defined therein, an inlet communicating with the hole, and at least one orifice penetrating from an exterior environment to the hole; at least one limiting member secured and moving in the at least one orifice and having meshing teeth formed on one end thereof to correspond to the hole, the meshing teeth engaging with the outer threads of the air nozzle, and the limiting member having a defining segment arranged on another end thereof; and a controlling assembly fitted on the body and used to control the at least one limiting member to move in the at least one orifice; the hole of the body being applied to insert the air nozzle, the controlling assembly being shifted to limit or unlimit the defining segment of the at least one limiting member, when the defining segment of the at least one limiting member is not limited, the at least one limiting member moves outwardly so that the meshing teeth does not engage with the outer threads of the air nozzle, and then the air nozzle inserts into or disengages from the hole; when the defining segment of the at least one limiting member is limited and does not move, the at least one limiting member moves inwardly, and the meshing teeth move into the hole so that the meshing teeth engage with the outer threads of the air nozzle.
 2. The joint structure for the air nozzle as claimed in claim 1, wherein the controlling assembly has a push protrusion defined therein, the controlling assembly moves so that the push protrusion pushes and limits the defining segment of the at least one limiting member, such that the at least one limiting member is controlled by the controlling assembly to move.
 3. The joint structure for the air nozzle as claimed in claim 1, wherein the controlling assembly controls and limits a movement of the at least one limiting member in a sliding manner.
 4. The joint structure for the air nozzle as claimed in claim 1, wherein the controlling assembly controls and limits a movement of the at least one limiting member in a rotating manner, and a spring is defined between the body and the at least one limiting member and is used to push the at least one limiting member to move outwardly.
 5. The joint structure for the air nozzle as claimed in claim 2, wherein the controlling assembly controls and limits a movement of the at least one limiting member in a rotating manner, and a spring is defined between the body and the at least one limiting member and is used to push the at least one limiting member to move outwardly.
 6. The joint structure for the air nozzle as claimed in claim 5, wherein the push protrusion is defined around the controlling assembly and has at least one cutout defined therein, and the body has at least one engaging rim retaining with the at least one cutout so that the controlling assembly is moved forwardly and rotates a certain angle to be limited.
 7. The joint structure for the air nozzle as claimed in claim 1, wherein a spring is defined between the body and the at least one limiting member and is used to push the at least one limiting member to move outwardly.
 8. The joint structure for the air nozzle as claimed in claim 1, wherein the at least one orifice of the body is non-circular.
 9. The joint structure for the air nozzle as claimed in claim 1, wherein the body also has a middle cylinder, a front cylinder, and a rear cylinder, and the front cylinder is screwed with one end of the middle cylinder and is used to fix a first seal ring, the rear cylinder is screwed with another end of the middle cylinder and is applied to fix a compression spring, the body further has a second seal ring disposed on one end of an outer peripheral side thereof and a third seal ring mounted on another end of the outer peripheral side thereof and the rear cylinder, the second seal ring and the third seal ring are provided to close a front side and a rear side of the at least one orifice, and the first seal ring is served to close the air nozzle, the compression spring is used for pushing the air nozzle.
 10. The joint structure for the air nozzle as claimed in claim 1, wherein the at least one limiting member having an extension extending outwardly from one end thereof and axially connected with the body, and a spring is defined between the body and the at least one limiting member and is used to push the at least one limiting member to move outwardly.
 11. The joint structure for the air nozzle as claimed in claim 1, wherein at least one limiting member having an extension extending outwardly from one end thereof and integrally formed with the body.
 12. The joint structure for the air nozzle as claimed in claim 1, wherein the hole of the body has a seal plug defined therein to match with the valve joint.
 13. A joint structure for an air nozzle comprising a valve joint being connected on an air nozzle so as to fill air, and the air nozzle including outer threads defined around an outer peripheral side thereof, the valve joint being a Presta valve join and including: a body having a hole defined therein, an inlet communicating with the hole, and at least one orifice penetrating from an exterior environment to the hole, the body further having a second seal ring disposed on one end of an outer peripheral side thereof and a third seal ring mounted on another end of the outer peripheral side thereof, the second seal ring and the third seal ring being provided to close a front side and a rear side of the at least one orifice; at least one limiting member secured and moving in the at least one orifice; and a controlling assembly fitted on the body and used to control the at least one limiting member to move in the at least one orifice or to limit a movement of the at least one limiting member.
 14. The joint structure for the air nozzle as claimed in claim 13, wherein the at least one limiting member has meshing teeth formed on one end thereof to correspond to the hole, the meshing teeth engage with the outer threads of the air nozzle, and the limiting member has a defining segment arranged on another end thereof.
 15. The joint structure for the air nozzle as claimed in claim 13, wherein the controlling assembly controls or limits a movement of the at least one limiting member in a sliding manner or in a rotating manner.
 16. The joint structure for the air nozzle as claimed in claim 13, wherein a spring is defined between the body and the at least one limiting member and is used to push the at least one limiting member to move outwardly. 